Japan has some very enjoyably music, mainly black and doom metal. Its strange to see how a country devoid of christianity and satan but still can write some pretty typical black metal but with a strange still "japanese" style to it, its hard to describe. If your interested in more Asian Black Metal bands here is a great website with a decent list and quick descriptions.
Here is a compilation of all of my favorite JPN Black Metal. ENJOY!
Sigh- Hangmans Hymn 2007